new file mode 100644
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _MSM_VIDC_CONTROL_H_
+#define _MSM_VIDC_CONTROL_H_
+
+#include "msm_vidc_inst.h"
+#include "msm_vidc_internal.h"
+
+int msm_vidc_ctrl_handler_init(struct msm_vidc_inst *inst, bool init);
+int msm_vidc_ctrl_handler_deinit(struct msm_vidc_inst *inst);
+int msm_v4l2_op_s_ctrl(struct v4l2_ctrl *ctrl);
+int msm_v4l2_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl);
+int msm_vidc_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl);
+int msm_vidc_prepare_dependency_list(struct msm_vidc_inst *inst);
+int msm_vidc_adjust_v4l2_properties(struct msm_vidc_inst *inst);
+int msm_vidc_set_v4l2_properties(struct msm_vidc_inst *inst);
+bool is_valid_cap_id(enum msm_vidc_inst_capability_type cap_id);
+bool is_valid_cap(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id);
+enum msm_vidc_inst_capability_type msm_vidc_get_cap_id(struct msm_vidc_inst *inst,
+ u32 id);
+#endif
new file mode 100644
@@ -0,0 +1,824 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "msm_venc.h"
+#include "msm_vidc_debug.h"
+#include "msm_vidc_driver.h"
+#include "msm_vidc_internal.h"
+#include "msm_vidc_platform.h"
+
+static inline bool has_children(struct msm_vidc_inst_cap *cap)
+{
+ return !!cap->children[0];
+}
+
+static inline bool is_leaf(struct msm_vidc_inst_cap *cap)
+{
+ return !has_children(cap);
+}
+
+bool is_valid_cap_id(enum msm_vidc_inst_capability_type cap_id)
+{
+ return cap_id > INST_CAP_NONE && cap_id < INST_CAP_MAX;
+}
+
+bool is_valid_cap(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id)
+{
+ if (cap_id <= INST_CAP_NONE || cap_id >= INST_CAP_MAX)
+ return false;
+
+ return !!inst->capabilities[cap_id].cap_id;
+}
+
+static inline bool is_all_childrens_visited(struct msm_vidc_inst_cap *cap,
+ bool lookup[INST_CAP_MAX])
+{
+ bool found = true;
+ int i;
+
+ for (i = 0; i < MAX_CAP_CHILDREN; i++) {
+ if (cap->children[i] == INST_CAP_NONE)
+ continue;
+
+ if (!lookup[cap->children[i]]) {
+ found = false;
+ break;
+ }
+ }
+ return found;
+}
+
+static int add_node_list(struct list_head *list, enum msm_vidc_inst_capability_type cap_id)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL;
+
+ entry = vzalloc(sizeof(*entry));
+ if (!entry) {
+ d_vpr_e("%s: allocation failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ INIT_LIST_HEAD(&entry->list);
+ entry->cap_id = cap_id;
+ list_add(&entry->list, list);
+
+ return 0;
+}
+
+static int add_node(struct list_head *list, struct msm_vidc_inst_cap *lcap,
+ bool lookup[INST_CAP_MAX])
+{
+ int rc = 0;
+
+ if (lookup[lcap->cap_id])
+ return 0;
+
+ rc = add_node_list(list, lcap->cap_id);
+ if (rc)
+ return rc;
+
+ lookup[lcap->cap_id] = true;
+ return 0;
+}
+
+static int msm_vidc_add_capid_to_fw_list(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL;
+ int rc = 0;
+
+ /* skip adding if cap_id already present in firmware list */
+ list_for_each_entry(entry, &inst->firmware_list, list) {
+ if (entry->cap_id == cap_id) {
+ i_vpr_l(inst,
+ "%s: cap[%d] %s already present in fw list\n",
+ __func__, cap_id, cap_name(cap_id));
+ return 0;
+ }
+ }
+
+ rc = add_node_list(&inst->firmware_list, cap_id);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+static int msm_vidc_add_children(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id)
+{
+ struct msm_vidc_inst_cap *cap;
+ int i, rc = 0;
+
+ cap = &inst->capabilities[cap_id];
+
+ for (i = 0; i < MAX_CAP_CHILDREN; i++) {
+ if (!cap->children[i])
+ break;
+
+ if (!is_valid_cap_id(cap->children[i]))
+ continue;
+
+ rc = add_node_list(&inst->children_list, cap->children[i]);
+ if (rc)
+ return rc;
+ }
+
+ return rc;
+}
+
+static int msm_vidc_adjust_cap(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id,
+ struct v4l2_ctrl *ctrl, const char *func)
+{
+ struct msm_vidc_inst_cap *cap;
+ int rc = 0;
+
+ /* validate cap_id */
+ if (!is_valid_cap_id(cap_id))
+ return 0;
+
+ /* validate cap */
+ cap = &inst->capabilities[cap_id];
+ if (!is_valid_cap(inst, cap->cap_id))
+ return 0;
+
+ /* check if adjust supported */
+ if (!cap->adjust) {
+ if (ctrl)
+ msm_vidc_update_cap_value(inst, cap_id, ctrl->val, func);
+ return 0;
+ }
+
+ /* call adjust */
+ rc = cap->adjust(inst, ctrl);
+ if (rc) {
+ i_vpr_e(inst, "%s: adjust cap failed for %s\n", func, cap_name(cap_id));
+ return rc;
+ }
+
+ return rc;
+}
+
+static int msm_vidc_set_cap(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id,
+ const char *func)
+{
+ struct msm_vidc_inst_cap *cap;
+ int rc = 0;
+
+ /* validate cap_id */
+ if (!is_valid_cap_id(cap_id))
+ return 0;
+
+ /* validate cap */
+ cap = &inst->capabilities[cap_id];
+ if (!is_valid_cap(inst, cap->cap_id))
+ return 0;
+
+ /* check if set supported */
+ if (!cap->set)
+ return 0;
+
+ /* call set */
+ rc = cap->set(inst, cap_id);
+ if (rc) {
+ i_vpr_e(inst, "%s: set cap failed for %s\n", func, cap_name(cap_id));
+ return rc;
+ }
+
+ return rc;
+}
+
+static int msm_vidc_adjust_dynamic_property(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id,
+ struct v4l2_ctrl *ctrl)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL, *temp = NULL;
+ struct msm_vidc_inst_cap *cap;
+ s32 prev_value;
+ int rc = 0;
+
+ cap = &inst->capabilities[0];
+
+ /* sanitize cap_id */
+ if (!is_valid_cap_id(cap_id)) {
+ i_vpr_e(inst, "%s: invalid cap_id %u\n", __func__, cap_id);
+ return -EINVAL;
+ }
+
+ if (!(cap[cap_id].flags & CAP_FLAG_DYNAMIC_ALLOWED)) {
+ i_vpr_h(inst,
+ "%s: dynamic setting of cap[%d] %s is not allowed\n",
+ __func__, cap_id, cap_name(cap_id));
+ return -EBUSY;
+ }
+ i_vpr_h(inst, "%s: cap[%d] %s\n", __func__, cap_id, cap_name(cap_id));
+
+ prev_value = cap[cap_id].value;
+ rc = msm_vidc_adjust_cap(inst, cap_id, ctrl, __func__);
+ if (rc)
+ return rc;
+
+ if (cap[cap_id].value == prev_value && cap_id == GOP_SIZE) {
+ /*
+ * Ignore setting same GOP size value to firmware to avoid
+ * unnecessary generation of IDR frame.
+ */
+ return 0;
+ }
+
+ /* add cap_id to firmware list always */
+ rc = msm_vidc_add_capid_to_fw_list(inst, cap_id);
+ if (rc)
+ goto error;
+
+ /* add children only if cap value modified */
+ if (cap[cap_id].value == prev_value)
+ return 0;
+
+ rc = msm_vidc_add_children(inst, cap_id);
+ if (rc)
+ goto error;
+
+ list_for_each_entry_safe(entry, temp, &inst->children_list, list) {
+ if (!is_valid_cap_id(entry->cap_id)) {
+ rc = -EINVAL;
+ goto error;
+ }
+
+ if (!cap[entry->cap_id].adjust) {
+ i_vpr_e(inst, "%s: child cap must have ajdust function %s\n",
+ __func__, cap_name(entry->cap_id));
+ rc = -EINVAL;
+ goto error;
+ }
+
+ prev_value = cap[entry->cap_id].value;
+ rc = msm_vidc_adjust_cap(inst, entry->cap_id, NULL, __func__);
+ if (rc)
+ goto error;
+
+ /* add children if cap value modified */
+ if (cap[entry->cap_id].value != prev_value) {
+ /* add cap_id to firmware list always */
+ rc = msm_vidc_add_capid_to_fw_list(inst, entry->cap_id);
+ if (rc)
+ goto error;
+
+ rc = msm_vidc_add_children(inst, entry->cap_id);
+ if (rc)
+ goto error;
+ }
+
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+
+ /* expecting children_list to be empty */
+ if (!list_empty(&inst->children_list)) {
+ i_vpr_e(inst, "%s: child_list is not empty\n", __func__);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ return 0;
+error:
+ list_for_each_entry_safe(entry, temp, &inst->children_list, list) {
+ i_vpr_e(inst, "%s: child list: %s\n", __func__, cap_name(entry->cap_id));
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+ list_for_each_entry_safe(entry, temp, &inst->firmware_list, list) {
+ i_vpr_e(inst, "%s: fw list: %s\n", __func__, cap_name(entry->cap_id));
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+
+ return rc;
+}
+
+static int msm_vidc_set_dynamic_property(struct msm_vidc_inst *inst)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL, *temp = NULL;
+ int rc = 0;
+
+ list_for_each_entry_safe(entry, temp, &inst->firmware_list, list) {
+ rc = msm_vidc_set_cap(inst, entry->cap_id, __func__);
+ if (rc)
+ goto error;
+
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+
+ return 0;
+error:
+ list_for_each_entry_safe(entry, temp, &inst->firmware_list, list) {
+ i_vpr_e(inst, "%s: fw list: %s\n", __func__, cap_name(entry->cap_id));
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+
+ return rc;
+}
+
+int msm_vidc_ctrl_handler_deinit(struct msm_vidc_inst *inst)
+{
+ i_vpr_h(inst, "%s(): num ctrls %d\n", __func__, inst->num_ctrls);
+ v4l2_ctrl_handler_free(&inst->ctrl_handler);
+ memset(&inst->ctrl_handler, 0, sizeof(struct v4l2_ctrl_handler));
+
+ return 0;
+}
+
+int msm_vidc_ctrl_handler_init(struct msm_vidc_inst *inst, bool init)
+{
+ int rc = 0;
+ struct msm_vidc_inst_cap *cap;
+ struct msm_vidc_core *core;
+ int idx = 0;
+ struct v4l2_ctrl_config ctrl_cfg = {0};
+ int num_ctrls = 0, ctrl_idx = 0;
+ u64 codecs_count, step_or_mask;
+
+ core = inst->core;
+ cap = &inst->capabilities[0];
+
+ if (!core->v4l2_ctrl_ops) {
+ i_vpr_e(inst, "%s: no control ops\n", __func__);
+ return -EINVAL;
+ }
+
+ for (idx = 0; idx < INST_CAP_MAX; idx++) {
+ if (cap[idx].v4l2_id)
+ num_ctrls++;
+ }
+ if (!num_ctrls) {
+ i_vpr_e(inst, "%s: no ctrls available in cap database\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (init) {
+ codecs_count = is_encode_session(inst) ?
+ core->enc_codecs_count :
+ core->dec_codecs_count;
+ rc = v4l2_ctrl_handler_init(&inst->ctrl_handler,
+ INST_CAP_MAX * codecs_count);
+ if (rc) {
+ i_vpr_e(inst, "control handler init failed, %d\n",
+ inst->ctrl_handler.error);
+ goto error;
+ }
+ }
+
+ for (idx = 0; idx < INST_CAP_MAX; idx++) {
+ struct v4l2_ctrl *ctrl;
+
+ if (!cap[idx].v4l2_id)
+ continue;
+
+ if (ctrl_idx >= num_ctrls) {
+ i_vpr_e(inst,
+ "%s: invalid ctrl %#x, max allowed %d\n",
+ __func__, cap[idx].v4l2_id,
+ num_ctrls);
+ rc = -EINVAL;
+ goto error;
+ }
+ i_vpr_l(inst,
+ "%s: cap[%d] %24s, value %d min %d max %d step_or_mask %#x flags %#x v4l2_id %#x hfi_id %#x\n",
+ __func__, idx, cap_name(idx),
+ cap[idx].value,
+ cap[idx].min,
+ cap[idx].max,
+ cap[idx].step_or_mask,
+ cap[idx].flags,
+ cap[idx].v4l2_id,
+ cap[idx].hfi_id);
+
+ memset(&ctrl_cfg, 0, sizeof(struct v4l2_ctrl_config));
+
+ /*
+ * few controls might have been already initialized in instance initialization,
+ * so modify the range values for them instead of initializing them again
+ */
+ if (!init) {
+ struct msm_vidc_ctrl_data ctrl_priv_data;
+
+ ctrl = v4l2_ctrl_find(&inst->ctrl_handler, cap[idx].v4l2_id);
+ if (ctrl) {
+ step_or_mask = (cap[idx].flags & CAP_FLAG_MENU) ?
+ ~(cap[idx].step_or_mask) :
+ cap[idx].step_or_mask;
+ memset(&ctrl_priv_data, 0, sizeof(struct msm_vidc_ctrl_data));
+ ctrl_priv_data.skip_s_ctrl = true;
+ ctrl->priv = &ctrl_priv_data;
+ v4l2_ctrl_modify_range(ctrl,
+ cap[idx].min,
+ cap[idx].max,
+ step_or_mask,
+ cap[idx].value);
+ /* reset private data to null to ensure s_ctrl not skipped */
+ ctrl->priv = NULL;
+ continue;
+ }
+ }
+
+ if (cap[idx].flags & CAP_FLAG_MENU) {
+ ctrl = v4l2_ctrl_new_std_menu(&inst->ctrl_handler,
+ core->v4l2_ctrl_ops,
+ cap[idx].v4l2_id,
+ cap[idx].max,
+ ~(cap[idx].step_or_mask),
+ cap[idx].value);
+ } else {
+ ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler,
+ core->v4l2_ctrl_ops,
+ cap[idx].v4l2_id,
+ cap[idx].min,
+ cap[idx].max,
+ cap[idx].step_or_mask,
+ cap[idx].value);
+ }
+ if (!ctrl) {
+ i_vpr_e(inst, "%s: invalid ctrl %#x cap %24s\n", __func__,
+ cap[idx].v4l2_id, cap_name(idx));
+ rc = -EINVAL;
+ goto error;
+ }
+
+ rc = inst->ctrl_handler.error;
+ if (rc) {
+ i_vpr_e(inst,
+ "error adding ctrl (%#x) to ctrl handle, %d\n",
+ cap[idx].v4l2_id,
+ inst->ctrl_handler.error);
+ goto error;
+ }
+
+ if (cap[idx].flags & CAP_FLAG_VOLATILE)
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+
+ ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
+ ctrl_idx++;
+ }
+ inst->num_ctrls = num_ctrls;
+ i_vpr_h(inst, "%s(): num ctrls %d\n", __func__, inst->num_ctrls);
+
+ return 0;
+error:
+ msm_vidc_ctrl_handler_deinit(inst);
+
+ return rc;
+}
+
+static int
+msm_vidc_update_buffer_count_if_needed(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id)
+{
+ int rc = 0;
+ bool update_input_port = false, update_output_port = false;
+
+ switch (cap_id) {
+ case LAYER_TYPE:
+ case ENH_LAYER_COUNT:
+ case LAYER_ENABLE:
+ update_input_port = true;
+ break;
+ default:
+ update_input_port = false;
+ update_output_port = false;
+ break;
+ }
+
+ if (update_input_port) {
+ rc = msm_vidc_update_buffer_count(inst, INPUT_PORT);
+ if (rc)
+ return rc;
+ }
+ if (update_output_port) {
+ rc = msm_vidc_update_buffer_count(inst, OUTPUT_PORT);
+ if (rc)
+ return rc;
+ }
+
+ return rc;
+}
+
+int msm_v4l2_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ int rc = 0;
+ struct msm_vidc_inst *inst;
+
+ if (!ctrl) {
+ d_vpr_e("%s: invalid ctrl parameter\n", __func__);
+ return -EINVAL;
+ }
+
+ inst = container_of(ctrl->handler,
+ struct msm_vidc_inst, ctrl_handler);
+ inst = get_inst_ref(g_core, inst);
+ if (!inst) {
+ d_vpr_e("%s: could not find inst for ctrl %s id %#x\n",
+ __func__, ctrl->name, ctrl->id);
+ return -EINVAL;
+ }
+ client_lock(inst, __func__);
+ inst_lock(inst, __func__);
+
+ rc = msm_vidc_get_control(inst, ctrl);
+ if (rc) {
+ i_vpr_e(inst, "%s: failed for ctrl %s id %#x\n",
+ __func__, ctrl->name, ctrl->id);
+ goto unlock;
+ } else {
+ i_vpr_h(inst, "%s: ctrl %s id %#x, value %d\n",
+ __func__, ctrl->name, ctrl->id, ctrl->val);
+ }
+
+unlock:
+ inst_unlock(inst, __func__);
+ client_unlock(inst, __func__);
+ put_inst(inst);
+ return rc;
+}
+
+static int
+msm_vidc_update_static_property(struct msm_vidc_inst *inst,
+ enum msm_vidc_inst_capability_type cap_id,
+ struct v4l2_ctrl *ctrl)
+{
+ int rc = 0;
+
+ /* update value to db */
+ msm_vidc_update_cap_value(inst, cap_id, ctrl->val, __func__);
+
+ if (cap_id == ROTATION) {
+ struct v4l2_format *output_fmt;
+
+ output_fmt = &inst->fmts[OUTPUT_PORT];
+ rc = msm_venc_s_fmt_output(inst, output_fmt);
+ if (rc)
+ return rc;
+ }
+
+ if (cap_id == BITSTREAM_SIZE_OVERWRITE) {
+ rc = msm_vidc_update_bitstream_buffer_size(inst);
+ if (rc)
+ return rc;
+ }
+
+ if (cap_id == ENH_LAYER_COUNT && inst->codec == MSM_VIDC_HEVC) {
+ u32 enable;
+
+ /* enable LAYER_ENABLE cap if HEVC_HIER enh layers > 0 */
+ if (ctrl->val > 0)
+ enable = 1;
+ else
+ enable = 0;
+
+ msm_vidc_update_cap_value(inst, LAYER_ENABLE, enable, __func__);
+ }
+
+ rc = msm_vidc_update_buffer_count_if_needed(inst, cap_id);
+
+ return rc;
+}
+
+int msm_vidc_s_ctrl(struct msm_vidc_inst *inst, struct v4l2_ctrl *ctrl)
+{
+ enum msm_vidc_inst_capability_type cap_id;
+ struct msm_vidc_inst_cap *cap;
+ int rc = 0;
+ u32 port;
+
+ cap = &inst->capabilities[0];
+
+ i_vpr_h(inst, FMT_STRING_SET_CTRL,
+ __func__, state_name(inst->state), ctrl->name, ctrl->id, ctrl->val);
+
+ cap_id = msm_vidc_get_cap_id(inst, ctrl->id);
+ if (!is_valid_cap_id(cap_id)) {
+ i_vpr_e(inst, "%s: invalid cap_id for ctrl %s\n", __func__, ctrl->name);
+ return -EINVAL;
+ }
+
+ /* mark client set flag */
+ cap[cap_id].flags |= CAP_FLAG_CLIENT_SET;
+
+ port = is_encode_session(inst) ? OUTPUT_PORT : INPUT_PORT;
+ if (!inst->bufq[port].vb2q->streaming) {
+ /* static case */
+ rc = msm_vidc_update_static_property(inst, cap_id, ctrl);
+ if (rc)
+ return rc;
+ } else {
+ /* dynamic case */
+ rc = msm_vidc_adjust_dynamic_property(inst, cap_id, ctrl);
+ if (rc)
+ return rc;
+
+ rc = msm_vidc_set_dynamic_property(inst);
+ if (rc)
+ return rc;
+ }
+
+ return rc;
+}
+
+int msm_v4l2_op_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct msm_vidc_inst *inst;
+ struct msm_vidc_ctrl_data *priv_ctrl_data;
+ int rc = 0;
+
+ if (!ctrl) {
+ d_vpr_e("%s: invalid ctrl parameter\n", __func__);
+ return -EINVAL;
+ }
+
+ /*
+ * v4l2_ctrl_modify_range may internally call s_ctrl
+ * which will again try to acquire lock leading to deadlock,
+ * Add check to avoid such scenario.
+ */
+ priv_ctrl_data = ctrl->priv ? ctrl->priv : NULL;
+ if (priv_ctrl_data && priv_ctrl_data->skip_s_ctrl) {
+ d_vpr_l("%s: skip s_ctrl (%s)\n", __func__, ctrl->name);
+ return 0;
+ }
+
+ inst = container_of(ctrl->handler, struct msm_vidc_inst, ctrl_handler);
+ inst = get_inst_ref(g_core, inst);
+ if (!inst) {
+ d_vpr_e("%s: invalid instance\n", __func__);
+ return -EINVAL;
+ }
+
+ client_lock(inst, __func__);
+ inst_lock(inst, __func__);
+ rc = inst->event_handle(inst, MSM_VIDC_S_CTRL, ctrl);
+ if (rc)
+ goto unlock;
+
+unlock:
+ inst_unlock(inst, __func__);
+ client_unlock(inst, __func__);
+ put_inst(inst);
+ return rc;
+}
+
+int msm_vidc_prepare_dependency_list(struct msm_vidc_inst *inst)
+{
+ struct list_head leaf_list, opt_list;
+ struct msm_vidc_inst_cap *cap, *lcap, *temp_cap;
+ struct msm_vidc_inst_cap_entry *entry = NULL, *temp = NULL;
+ bool leaf_visited[INST_CAP_MAX];
+ bool opt_visited[INST_CAP_MAX];
+ int tmp_count_total, tmp_count, num_nodes = 0;
+ int i, rc = 0;
+
+ cap = &inst->capabilities[0];
+
+ if (!list_empty(&inst->caps_list)) {
+ i_vpr_h(inst, "%s: dependency list already prepared\n", __func__);
+ return 0;
+ }
+
+ /* init local list and lookup table entries */
+ INIT_LIST_HEAD(&leaf_list);
+ INIT_LIST_HEAD(&opt_list);
+ memset(&leaf_visited, 0, sizeof(leaf_visited));
+ memset(&opt_visited, 0, sizeof(opt_visited));
+
+ /* populate leaf nodes first */
+ for (i = 1; i < INST_CAP_MAX; i++) {
+ lcap = &cap[i];
+ if (!is_valid_cap(inst, lcap->cap_id))
+ continue;
+
+ /* sanitize cap value */
+ if (i != lcap->cap_id) {
+ i_vpr_e(inst, "%s: cap id mismatch. expected %s, actual %s\n",
+ __func__, cap_name(i), cap_name(lcap->cap_id));
+ rc = -EINVAL;
+ goto error;
+ }
+
+ /* add all leaf nodes */
+ if (is_leaf(lcap)) {
+ rc = add_node(&leaf_list, lcap, leaf_visited);
+ if (rc)
+ goto error;
+ } else {
+ rc = add_node(&opt_list, lcap, opt_visited);
+ if (rc)
+ goto error;
+ }
+ }
+
+ /* find total optional list entries */
+ list_for_each_entry(entry, &opt_list, list)
+ num_nodes++;
+
+ /* used for loop detection */
+ tmp_count_total = num_nodes;
+ tmp_count = num_nodes;
+
+ /* sort final outstanding nodes */
+ list_for_each_entry_safe(entry, temp, &opt_list, list) {
+ /* initially remove entry from opt list */
+ list_del_init(&entry->list);
+ opt_visited[entry->cap_id] = false;
+ tmp_count--;
+ temp_cap = &cap[entry->cap_id];
+
+ /**
+ * if all child are visited then add this entry to
+ * leaf list else add it to the end of optional list.
+ */
+ if (is_all_childrens_visited(temp_cap, leaf_visited)) {
+ list_add(&entry->list, &leaf_list);
+ leaf_visited[entry->cap_id] = true;
+ tmp_count_total--;
+ } else {
+ list_add_tail(&entry->list, &opt_list);
+ opt_visited[entry->cap_id] = true;
+ }
+
+ /* detect loop */
+ if (!tmp_count) {
+ if (num_nodes == tmp_count_total) {
+ i_vpr_e(inst, "%s: loop detected in subgraph %d\n",
+ __func__, num_nodes);
+ rc = -EINVAL;
+ goto error;
+ }
+ num_nodes = tmp_count_total;
+ tmp_count = tmp_count_total;
+ }
+ }
+
+ /* expecting opt_list to be empty */
+ if (!list_empty(&opt_list)) {
+ i_vpr_e(inst, "%s: opt_list is not empty\n", __func__);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ /* move elements to &inst->caps_list from local */
+ list_replace_init(&leaf_list, &inst->caps_list);
+
+ return 0;
+error:
+ list_for_each_entry_safe(entry, temp, &opt_list, list) {
+ i_vpr_e(inst, "%s: opt_list: %s\n", __func__, cap_name(entry->cap_id));
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+ list_for_each_entry_safe(entry, temp, &leaf_list, list) {
+ i_vpr_e(inst, "%s: leaf_list: %s\n", __func__, cap_name(entry->cap_id));
+ list_del_init(&entry->list);
+ vfree(entry);
+ }
+ return rc;
+}
+
+int msm_vidc_adjust_v4l2_properties(struct msm_vidc_inst *inst)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL, *temp = NULL;
+ int rc = 0;
+
+ /* adjust all possible caps from caps_list */
+ list_for_each_entry_safe(entry, temp, &inst->caps_list, list) {
+ i_vpr_l(inst, "%s: cap: id %3u, name %s\n", __func__,
+ entry->cap_id, cap_name(entry->cap_id));
+
+ rc = msm_vidc_adjust_cap(inst, entry->cap_id, NULL, __func__);
+ if (rc)
+ return rc;
+ }
+
+ return rc;
+}
+
+int msm_vidc_set_v4l2_properties(struct msm_vidc_inst *inst)
+{
+ struct msm_vidc_inst_cap_entry *entry = NULL, *temp = NULL;
+ int rc = 0;
+
+ /* set all caps from caps_list */
+ list_for_each_entry_safe(entry, temp, &inst->caps_list, list) {
+ rc = msm_vidc_set_cap(inst, entry->cap_id, __func__);
+ if (rc)
+ return rc;
+ }
+
+ return rc;
+}